Click on map to open large map in new window (Map updated: 11 August 2009)

Click here to view an interactive map of the Northern Ireland dataset as currently collated by CEDaR.The map is generated through the NBN Gateway using their Interactive Mapping Tool.

Very like P. hymenina (described elsewhere), but differing in the nature of the ascending lobes which become scaly with lobules and crisped. The undersurface has veins, darker brown. It occurs on mossy rocks and the bases of trees, especially near upland rivers.